My article “Intergovernmental Yet Dynamically Expansive: Concordance Legalization as an Alternative Regional Trading Arrangement in ASEAN and Beyond” published in the European Journal of International Law conceptualizes the Association of Southeast Asian Nations’ (ASEAN) integration model, which I term ‘Concordance Legalization’. This is amid the regional trading arrangement landscape that holds two contrasting models epitomized by the European Union (EU) and the United States–Mexico–Canada Agreement (USMCA). Concordance Legalization may offer sovereignty-centric states, especially those in the Global South, a ‘third way’ to regionalize dynamically whilst retaining intergovernmental preferences.